<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域 -->
    <el-card>
      <!-- 搜索与添加区域 -->
      <el-row :gutter="20">
        <el-col :span="7">
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getUserList"
            @change="getUserList"
          >
            <el-button slot="append" icon="el-icon-search" @click="getUserList">
            </el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true">
            添加用户
          </el-button>
        </el-col>
      </el-row>

      <!-- 用户列表区域 -->
      <el-table :data="userList" :stripe="true" border>
        <el-table-column type="index" label="#"></el-table-column>
        <el-table-column
          label="用户名"
          prop="username"
          align="center"
        ></el-table-column>
        <el-table-column
          label="邮箱"
          prop="email"
          align="center"
        ></el-table-column>
        <el-table-column
          label="电话"
          prop="mobile"
          align="center"
        ></el-table-column>
        <el-table-column
          label="角色"
          prop="role_name"
          align="center"
        ></el-table-column>
        <el-table-column label="状态" align="center">
          <template slot-scope="scope">
            <!-- 作用域插槽 -->
            <!-- scope.row能够访问到本行的数据 -->
            <!-- {{ scope.row }} -->
            <el-switch
              v-model="scope.row.mg_state"
              active-color="#13ce66"
              inactive-color="#ff4949"
              @change="userStateChanged(scope.row)"
            >
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" align="center" width="180px">
          <template slot-scope="scope">
            <!-- 作用域插槽 -->
            <!-- scope.row能够访问到本行的数据 -->
            <!-- 修改按钮 -->
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="small"
              round
              @click="showEditDialog(scope.row.id)"
            ></el-button>
            <!-- 删除按钮 -->
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="small"
              round
              @click="removeUserById(scope.row.id)"
            ></el-button>
            <!-- 分配角色按钮 -->
            <el-tooltip
              effect="dark"
              content="分配角色"
              placement="top"
              :enterable="false"
            >
              <el-button
                type="warning"
                icon="el-icon-s-tools"
                size="small"
                round
                @click="setRole(scope.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[5, 10, 15, 20]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>

      <!-- 添加用户的对话框 -->
      <el-dialog
        title="添加用户"
        :visible.sync="addDialogVisible"
        width="50%"
        @close="addDialogClosed"
      >
        <!-- 内容主体区域 -->
        <el-form
          :model="addForm"
          :rules="addFormRules"
          ref="addFormRef"
          label-width="70px"
        >
          <el-form-item label="用户名" prop="username">
            <el-input v-model="addForm.username"></el-input>
          </el-form-item>
          <el-form-item label="密码" prop="password">
            <el-input v-model="addForm.password"></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="addForm.email"></el-input>
          </el-form-item>
          <el-form-item label="手机" prop="mobile">
            <el-input v-model="addForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <!-- 底部按钮区域 -->
        <span slot="footer" class="dialog-footer">
          <el-button @click="addDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="adduser">
            确 定
          </el-button>
        </span>
      </el-dialog>

      <!-- 修改用户的对话框 -->
      <el-dialog
        title="修改用户信息"
        :visible.sync="editDialogVisible"
        width="50%"
        @close="editDialogClosed"
      >
        <el-form
          :model="editForm"
          :rules="editFormRules"
          ref="editFormRef"
          label-width="70px"
        >
          <el-form-item label="用户名">
            <el-input v-model="editForm.username" disabled></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="editForm.email"></el-input>
          </el-form-item>
          <el-form-item label="电话" prop="mobile">
            <el-input v-model="editForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <span slot="footer" class="dialog-footer">
          <el-button @click="editDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="editUserInfo">确 定</el-button>
        </span>
      </el-dialog>
    </el-card>
    <!-- 分配角色的对话框 -->
    <el-dialog
      title="分配角色"
      :visible.sync="setRoleDialogVisible"
      width="50%"
      @close="setRoleDialogClosed"
    >
      <div>
        <p>当前的用户：{{ userInfo.username }}</p>
        <p>当前的用户：{{ userInfo.role_name }}</p>
        <p>
          分配新角色：
          <el-select v-model="selectedRoleId" placeholder="请选择">
            <el-option
              v-for="item in rolesList"
              :key="item.id"
              :label="item.roleName"
              :value="item.id"
            >
            </el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">
          确 定
        </el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    //验证邮箱的规则
    var checkEmail = (rule, value, cb) => {
      // 验证邮箱的正则表达式
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/;
      if (regEmail.test(value)) {
        // 合法的邮箱
        return cb();
      }
      cb(new Error("请输入合法的邮箱"));
    };
    //验证手机号的规则
    var checkMobile = (rule, value, cb) => {
      // 验证手机号的正则表达式;
      const regMobile = /^(0|86|17951)?(13[0-9]|15[0123456789]|17[678]|18[0-9]|14[57])[0-9]{8}$/;
      if (regMobile.test(value)) {
        return cb();
      }
      cb(new Error("请输入合法的手机号"));
    };
    return {
      // 获取用户列表的参数对象
      queryInfo: {
        // 查询信息
        query: "",
        // 当前的页数
        pagenum: 1,
        // 每一页的数据数
        pagesize: 5,
      },
      userList: [],
      total: 0,
      // 控制添加用户对话框的显示与隐藏
      addDialogVisible: false,
      // 添加用户的表单数据
      addForm: {
        username: "",
        password: "",
        email: "",
        mobile: "",
      },
      // 添加表单的验证规则对象
      addFormRules: {
        username: [
          { required: true, message: "请输入用户名", trigger: "blur" },
          {
            min: 3,
            max: 10,
            message: "用户名的长度需在3~10个字符之间",
            trigger: "blur",
          },
        ],
        password: [
          { required: true, message: "请输入密码", trigger: "blur" },
          {
            min: 6,
            max: 15,
            message: "密码的长度需在6~15个字符之间",
            trigger: "blur",
          },
        ],
        email: [
          { required: true, message: "请输入邮箱", trigger: "blur" },
          {
            validator: checkEmail,
            trigger: ["blur", "change"],
          },
        ],
        mobile: [
          { required: true, message: "请输入手机号", trigger: "blur" },
          {
            validator: checkMobile,
            trigger: ["blur", "change"],
          },
        ],
      },
      // 控制修改用户对话框的显示与隐藏
      editDialogVisible: false,
      //查询到的用户信息对象
      editForm: {},
      //修改表单的验证对象
      editFormRules: {
        email: [
          { required: true, message: "请输入邮箱", trigger: "blur" },
          {
            validator: checkEmail,
            trigger: ["blur", "change"],
          },
        ],
        mobile: [
          { required: true, message: "请输入手机号", trigger: "blur" },
          {
            validator: checkMobile,
            trigger: ["blur", "change"],
          },
        ],
      },
      // 控制分配角色对话框的显示与隐藏
      setRoleDialogVisible: false,
      // 需要被分配角色的用户信息
      userInfo: {},
      // 所有角色的数据列表
      rolesList: [],
      //已选中的角色id值
      selectedRoleId: "",
    };
  },
  created() {
    this.getUserList();
  },
  methods: {
    // 获取用户列表
    async getUserList() {
      const { data: res } = await this.$http.get("users", {
        params: this.queryInfo,
      });
      if (res.meta.status !== 200) return this.$message.error(res.meta.msg);
      this.$message.success(res.meta.msg);
      this.userList = res.data.users;
      this.total = res.data.total;
      // console.log(res);
    },
    // 监听pagesize改变的事件
    handleSizeChange(newSize) {
      // console.log(newSize);
      this.queryInfo.pagesize = newSize;
      this.getUserList();
    },
    // 监听页码值改变的事件
    handleCurrentChange(newPage) {
      // console.log(newPage);
      this.queryInfo.pagenum = newPage;
      this.getUserList();
    },
    // 监听switch开关状态的改变
    async userStateChanged(userInfo) {
      console.log(userInfo);
      const { data: res } = await this.$http.put(
        // 使用字符串拼接的方法,将参数携带在url中
        `users/${userInfo.id}/state/${userInfo.mg_state}`
      );
      if (res.meta.status !== 200) {
        userInfo.mg_state = !userInfo.mg_state;
        return this.$message.error(res.meta.msg);
      }

      this.$message.success(res.meta.msg);
    },
    //监听添加用户对话框的关闭
    addDialogClosed() {
      // 重置区域
      this.$refs.addFormRef.resetFields();
    },
    //点击按钮，添加新用户
    adduser() {
      // 正式提交添加新用户请求前的预验证;
      this.$refs.addFormRef.validate(async (valid) => {
        console.log(valid);
        if (!valid) return;
        // 如果valid为true 则可以发起添加用户的网络请求
        const { data: res } = await this.$http.post("users", this.addForm);
        if (res.meta.status !== 201) {
          return this.$message.error(res.meta.msg);
        }
        this.$message.success(res.meta.msg);
        //添加用户成功之后关闭对话框
        this.addDialogVisible = false;
        // 重新获取用户列表
        this.getUserList();
      });
    },
    //展示编辑用户的对话框
    async showEditDialog(id) {
      const { data: res } = await this.$http.get("users/" + id);
      if (res.meta.status != 200) {
        return this.$message.error(res.meta.msg);
      }
      this.$message.success("获取用户信息成功");
      this.editForm = res.data;
      this.editDialogVisible = true;
    },
    //// 重置区域
    editDialogClosed() {
      this.$refs.editFormRef.resetFields();
    },
    // 正式提交修改请求前的预验证步骤
    editUserInfo() {
      this.$refs.editFormRef.validate(async (valid) => {
        console.log(valid);
        if (!valid) return;
        // 如果valid为true 则可以发起添加用户的网络请求
        const { data: res } = await this.$http.put(
          "users/" + this.editForm.id,
          this.editForm
          // { email: this.editForm.email, mobile: this.editForm.mobile }
        );
        if (res.meta.status !== 200) {
          return this.$message.error(res.meta.msg);
        }
        this.$message.success("修改用户信息成功");
        //添加用户成功之后关闭对话框
        this.editDialogVisible = false;
        // 重新获取用户列表
        this.getUserList();
      });
    },
    // 根据id删除用户的信息
    async removeUserById(id) {
      // console.log(id);
      // 弹框询问用户是否删除数据
      const confirmResult = await this.$confirm(
        "此操作将永久删除该用户, 是否继续?",
        "提示",
        {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning",
          center: true,
        }
      ).catch((err) => err);
      // catch捕捉错误

      // console.log(confirmResult);
      // 如果用户确认删除,则返回值为字符串confirm
      // 如果用户取消了删除,则返回值为字符串cancel
      if (confirmResult !== "confirm") return this.$message.info("已取消删除");
      if (confirmResult === "confirm") {
        const { data: res } = await this.$http.delete("users/" + id);
        if (res.meta.status !== 200) {
          return this.$message.error("删除用户失败!");
        }
        this.$message.warning("已成功删除该用户信息");
        this.getUserList();
      }
    },
    // 展示分配角色的对话框
    async setRole(userInfo) {
      this.userInfo = userInfo;

      // 在展示对话框之前获取所有角色的列表
      const { data: res } = await this.$http.get("roles");
      if (res.meta.status !== 200) {
        return this.$message.error(res.meta.msg);
      }
      this.rolesList = res.data;

      this.setRoleDialogVisible = true;
    },
    // 点击按钮，分配角色
    async saveRoleInfo() {
      if (!this.selectedRoleId) {
        return this.$message.error("请选择要分配的角色");
      }
      const { data: res } = await this.$http.put(
        `users/${this.userInfo.id}/role`,
        {
          rid: this.selectedRoleId,
        }
      );
      if (res.meta.status !== 200) {
        return this.$message.error(res.meta.msg);
      }
      this.$message.success(res.meta.msg);
      this.getUserList();
      this.setRoleDialogVisible = false;
    },
    // 监听分配角色对话框关闭
    setRoleDialogClosed() {
      this.selectedRoleId = "";
      this.userInfo = {};
    },
  },
};
</script>

<style scoped></style>
